Fig. 2a-c. Stokes profiles for models B (solid), E (dashed), D (dot-dashed), G (triple dot-dashed) and the plane parallel PLA model (dotted) at . See also Table 1 for a legend of the line patterns. a  Stokes V profiles, b  Stokes Q profiles, c  Stokes I profile for model D. The I profiles for the other models are similar in shape, and are not plotted for clarity. All profiles in a given frame are normalized to a single amplitude in order to emphasize differences in shape.